Ancillary Files to "Analytic two-loop amplitudes for q qbar → γγ and gg → γγ mediated by a heavy-quark loop"

Submission containing ancillary files to the research article "Analytic two-loop amplitudes for q qbar → γγ and gg → γγ mediated by a heavy-quark loop" (arXiv: 2502.00118)Preprint Number: TUM-HEP 1554/25If you use the results distributed with this repository in your research work, please cite 2502.00118. This repository submission contains the following files, all in Mathematica-readable format: **** CanonicalBasis.m **** This file contains the definition of our 165 canonical master integrals. **** Roots.m **** This file contains the definitions of the square roots in the form of replacement rules. **** DiffRelationsEllipticFunctions.m **** This file contains replacement rules for the differential relations among the elliptic functions. **** CanonicalDiffEqs.m **** This file contains the partial differential equations matrices for the canonical basis. **** HelCoeffs2lbareExpLM.m **** In this file, we give all the helicity coefficients expanded in the large mass limit. **** HelCoeffs2lbareExpTt.m **** In this file, we give all the helicity coefficients expanded in the point (s,t)=(4m2,0). **** HelCoeffs2lbareExpTu.m **** In this file, we give all the helicity coefficients expanded in the point (s,u)=(4m2,0). **** README.txt **** For more details, see the README.txt file.